Kuwerengera Kuchepa kwa Inlet Pressure

Ngati kupanikizika kwa pomp ndi kochepa kusiyana ndi mpweya wa pakati, cavitation idzachitika, zomwe zidzakhudza momwe ntchito yamapope imagwirira ntchito. Pofuna kupewa cavitation ndi kuonetsetsa kuti mpweya wa pampu uli ndi vuto lochepa, mutu wotsalira kwambiri uyenera kuwerengedwa monga ukutsatira:

H = Pbx10.2-NPSH-Hf-hv-Hs

Pb: Kuthamanga kwa mpweya, mpiringidzo (Mu njira yamayipi yowona, ingathe kuonedwa ngati njira yosokoneza);
NPSH: Mutu wothandizira wotetezeka wa Net, m (Phindu pa kuthamanga kwapakati pa Q-NPSH);
Hf: Kuwonongeka kwa mzere wa pipe (Kufunika pa kuthamanga kwakukulu kwa mapaipi ofanana);
Hv: Mpweya wambiri wa mpweya, mamita (Medium vapor pressure pa nyengo yozizira, osasinthika ndi madzi, monga momwe akusonyezerani pa chithunzi4 kumanja);
H: Mtsinje wa chitetezo, m, mtengo wake wonse ndi 0.5.
Zotsatira zake: ngati H ndi yabwino, mpope imayikidwa muyeso, mwinamwake, imayikidwa mu downdraft njira.

Zindikirani: Sikoyenera kuchita pamwamba pa kuwerengera pansi pazinthu zonse. Ndikamagwiritsa ntchito mpope pokhapokha tikhoza kuwerengera H:
1. Kutentha kwapakati kumapamwamba;
2. Kuthamanga kwa kuthamanga kwakukulu kuposa kuwerengera;
3. Mutu wamtundu waukulu ndi wautali nthawi yayitali;
4. Kupanikizika kwapadera ndi kochepa;
5.Mkhalidwe uli woipa.

Kusankhidwa Kwa Mapampu

Kusankhidwa kwa mapampu kuyenera kukhazikitsidwa:
Ntchito yogwiritsira ntchito mpope.
Deta ya deta monga kupweteka kwapadera monga kusokoneza kusiyana kwa kutalika, kusokonezeka kwapopework,
Mpweya wabwino etc.
Pump zipangizo
Mipope yolumikiza
Kawirikawiri amagwiritsidwa ntchito mawotchi osindikizira magome

1. Ntchito yogwiritsira ntchito mpope:

Kuchokera kuntchito ya ntchito ndizotheka kusankha mpope pamakopati a mphika omwe akuwonetsedwa mu & quot; performancecurves / technical & quot; deta.

Deta ya deta:

Pamene mukupaka mpope zotsatirazi ziyenera kukhala zogwiritsira ntchito ndalama: • Kuthamanga ndi kupsyinjika pa malo otsekemera.â € ¢ Kutaya kupweteka chifukwa cha kutalika kwa kusiyana kwake. • Kutsekedwa kotayika pipeworkork (Hf) (Onaninso Kufiira.) • Zingakhale zogwira mtima kwambiri. • NPSH chiwerengero. • Kuwerengera mtengo wa NPSH, wonani zofanana zotsatizana.

3. Pulogalamu yabwino:

Musanayambe kupeza njira yabwino kwambiri, opaleshoni ya pampu iyenera kudziwika. Ngati mpope ikuyenera kugwira ntchito ngati ofesi yomweyi, yesetsani kupaka BL yomwe imagwira ntchito yomwe ikugwirizana ndi mpweya wabwino.
Pomwe mpope uli waukulu pokhapokha ngati mutha kuyenda bwino, nkofunika kuti nthawi zonse mukhale ndi udindo wopita kumbali yoyendetsera bwino (eta) kuti mupitirizebe kuyenda bwino.

4. Pump:

Kusankhidwa kwa kugwirana kwa mpope kumadalira pazivundikiro zogwiritsidwa ntchito ndi pomba. mpope amapereka osiyanasiyana a ftexible kugwirizana monga:

5. Kawirikawiri amagwiritsa ntchito makina osinthika osindikizira

Field Field

Mtundu wachisindikizo cha shaft

Shaft seal material

Zachibadwa

Special

1

2

3

4 5

Sakani fungulo

Gawo lozungulira

Code

Chigawo chokhazikika

Code

Elastomers

Code

Kusinthasintha kwa kasupe

Collor

Code

0â "ƒ mpaka + 90â" ƒ madzi abwino

â-

Graphite

A

SiC

S

FPM

F

SUS304

C

ASFC

0â "ƒ mpaka + 90â" ƒ madzi abwino

â-

wc

W

Graphite

A

FPM

F

SUS304

C

WAFC

+ 90 "" mpaka "120â" ƒ kukana kutentha kwa mpweya

â-

SiC

S

SiC

S

EPDM

E

SUS304

C

SSEC

mpaka 0â "ƒ

â-

wc

W

wc

W

EPDM

E

SUS304

C

WWEC

Chizindikiro cha mawotchi	Pamp chitsanzo	d1	d2	h
NJK	BL (T) 2/4	12	12	55
	BL (T) 8/12/16/20	16	16	57.5
	BL (T) 32/45/60/90	22	22	72
NDA	BW (J) 2/4	12.7	16	32
	BW (J) 8/16	17.4	20	33.5